earlier he told dana bash what he was feeling as he watched america's first african-american president take the oath for the second time. >> i did everything possible today to keep from crying. when i saw him standing there, taking the oath with the bible of martin luther king jr., knowing that just 50 short years ago, that dr. king stood on the steps of the lincoln memorial and said i have a dream. >> of course, this was actually the fourth time that president obama has taken the oath of office. let's bring in our panel, van jones, cnn contributor who served as president obama's green jobs adviser in 2009. sally quinn, margaret hoover, republican consultant, cornell belcher, democratic strategist who served as a pollster for president obama's 2012 re-election team. i wonder how you think this anniversary, this martin luther king day, informed and was infused throughout president obama's remarks today. >> i'll go back to even when he was senator obama. he always talked about, he also understood the gravity and talked about, i stand on the shoulders of the great men and women of the civ